AOK
| Arkansas-Oklahoma Railroad | 6 |
AOKX
| Greenbrier Management Services, LLC | 4 |
ARR
| Alaska Railroad | 23 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
BLPX
| BLPX | 1 |
BN
| Burlington Northern | 2 |
BNSF
| BNSF Railway | 35 |
BOOT
| BOOT | 1 |
BTCX
| Browner Turnout Company | 1 |
BVRY
| Brandywine Valley Railroad Company | 1 |
CN
| Canadian National Railways | 3 |
CNW
| Chicago & Northwestern | 1 |
CO
| Chesapeake & Ohio | 2 |
CP
| Canadian Pacific Railway | 8 |
CRLE
| Coe Rail Incorporated | 1 |
CSX
| CSX Railroad | 10 |
CW
| Colorado and Wyoming | 2 |
DODX
| Department Of Defense | 153 |
DRGW
| Denver & Rio Grande Western | 1 |
DTTX
| TTX Company - Double Stack Cars | 1 |
ENR
| E and N Railway Company Limited | 2 |
FEC
| Florida East Coast | 1 |
FRR
| Falls Road Railroad Company Incorporated | 1 |
FTTX
| TTX Company | 2 |
GEDX
| GEDX | 1 |
GIMX
| General American Marks Company | 2 |
HTTX
| TTX Company | 18 |
IC
| Illinois Central | 1 |
ICE
| Iowa Chicago and Eastern | 5 |
ITTX
| TTX Company | 22 |
JTTX
| TTX Company | 3 |
KRL
| Kasgro Rail Lines | 2 |
LBR
| Lowville and Beaver River Railroad Compa | 1 |
LMIC
| Lake Michigan & Indiana Railroad | 3 |
LTTX
| TTX Company | 2 |
MNG
| MNG | 1 |
MP
| Missouri Pacific | 6 |
MSPX
| P4 Productions LLC | 1 |
MSTL
| Minneapolis & St Louis | 1 |
MTTX
| TTX Company | 4 |
NBCX
| Nebraska Boiler Co | 1 |
NCPC
| NCPC | 1 |
NOKL
| Northwestern Oklahoma | 1 |
NS
| Norfolk Southern | 1 |
NW
| Norfolk & Western | 2 |
NYC
| New York Central | 2 |
OTTX
| TTX Company | 45 |
PEYX
| Transportation Technology Services Inc | 2 |
PHMX
| P&H Mining Equipment | 1 |
PRR
| Pennsylvania Railroad | 1 |
PTTX
| TTX Company | 12 |
QTTX
| TTX Company | 25 |
QUAX
| Redstreak, LLC | 2 |
SNHX
| IND/AG Chemicals Incorporated | 2 |
SOU
| Southern | 2 |
SP
| Southern Pacific | 1 |
SPSX
| Progress Rail Services Corp | 8 |
TBCX
| Boeing Company | 2 |
TFWX
| TTX COMPANY | 1 |
TOEX
| TOEX | 1 |
TPDX
| TPDX | 37 |
TPOX
| TPOX | 2 |
TTDX
| TTX Company - DOD Service Flats | 1 |
TTEX
| TTX Company - Articulated Flat Cars (TOFC/COFC) | 1 |
TTHX
| TTX Company - Flat Cars | 1 |
TTJX
| TTX Company-Bulkhead Flats | 1 |
TTYX
| TTX Company | 2 |
TZPR
| Tazewell & Peoria Railroad | 1 |
UP
| Union Pacific Railroad Company | 18 |
UPP
| Union Pacific Passenger | 1 |
USAX
| United States Army | 1 |
XTTX
| TTX Company | 7 |